LED bulb



FIG. 1 is a perspective view of an embodiment of an LED bulb;

FIG. 2 is a front view of the embodiment;

FIG. 3 is a rear view of the embodiment;

FIG. 4 is a left side view of the embodiment;

FIG. 5 is a right side view of the embodiment;

FIG. 6 is a top view of the embodiment; and,

FIG. 7 is a bottom view of the embodiment.

The broken lines in the Figures show portions of the LED bulb which form no part of the claimed design. 

CLAIM The ornamental design for an LED bulb, as shown and described. 